This sounds like the kind of person that breaks one of those Starbucks pay-it-forward chains but then after breaking it tries to order more stuff while trying to make the barista charge the person after them
(sidenote: I'm not a fan of those chains and wouldn't judge anyone who breaks them)
Are you talking about posts/comments that get a few downvotes or overwhelmingly downvoted?
From what I've seen, getting a few random downvotes seems normal, and the posts/comments that are getting overwhelmingly downvoted are toxic